(3Gdaf GdJTcjdj GdeYGUQ aj GdYQGb (B: s (3eQMdI GdSJjfGJ (B/ s - (3cGed , YGOd s ((3HZOGO (B: s (3OGQ GdTDhf GdKbGajI GdYGeI , s, 1986)
Keywords: (3Gdafhf GdJTcjdjI s